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Cov khoom siv ntawm pob zeb yas board yog dab tsi?
2025-09-11
Cov Cheebtsam Tseem Ceeb thiab Piv Txwv: Cov khoom tseem ceeb ntawm cov pob zeb yas yog cov khoom sib xyaw ua ke ntawm cov hmoov av inorganic thiab polymer. Ntawm lawv, cov hmoov av inorganic (feem ntau yog calcium carbonate hmoov CaCO3; Polymer (feem ntau yog PVC resin hmoov, suav txog li 35%, lub npe scientific polyvinyl chloride, ib qho yas feem ntau) muab kev ruaj khov thiab hluav taws kub. Tsis tas li ntawd, yuav ntxiv me ntsis plasticizers, stabilizers, roj nplua nyeem, thiab cov neeg sawv cev xim.